“Did Jesus teach us to be judgmental?”
He did. Ninety percent of the Bible is a text book on how to be judgemental. “Abhor that which is evil; cleave to that which is good.” Romans 12:9
You are judgemental every day of the week, as every human being is.
The WORDS of Jesus:
“7 Judge not, that ye be not judged.
2 For with what judgment ye judge, ye shall be judged: and with what measure ye mete, it shall be measured to you again.
3 And why beholdest thou the mote that is in thy brother’s eye, but considerest not the beam that is in thine own eye?”
Matthew 7:1-3
It would behoove you to remember this, if you want to call yourself a follower of Christ.